Harmonized Tariff Schedule of the U.S. › Chapter 73 Articles of iron or steel
7318.21.00.30Tariff line
Classification path
Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel
7318
Non-threaded articles
Spring washers and other lock washers
Helical spring lock washers
7318.21.00.30
Rates of duty
General rate (Column 1)5.8%
SpecialFree (A, AU, B, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG) 2.9% (JP)
Column 235%
Unitkg
Free (A, AU, B, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG) 2.9% (JP)
Printed page 2626
Measure flags
for origin CN, entry date 2026-10-26 · base rate 5.8%
- Section 301 forced-labor tariff (12.5%)9903.05.90ExemptexemptGoods entered under a 232 heading (METALS) are exempt from the forced-labor 301 duty (note 52(f))
- China 301 List 3 (9903.88.03)9903.88.03Applies+25%8-digit subheading 7318.21.00 is on L3
- 232 steel / aluminum / copper & derivatives9903.82.02Applies+50%General (all other countries) | Iron or steel, spring washers and other lock washers
Confirmed total 80.8% · max 80.8%Full duty breakdown →